CVE-2011-2698

CVE-2011-2698 is a medium-severity vulnerability in Wireshark with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.3)
• EPSS exploit prediction: 2% (81st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Wireshark
• Published: 2011-08-23
• Last modified: 2026-06-16

Description

Off-by-one error in the elem_cell_id_aux function in epan/dissectors/packet-ansi_a.c in the ANSI MAP dissector in Wireshark 1.4.x before 1.4.8 and 1.6.x before 1.6.1 allows remote attackers to cause a denial of service (infinite loop) via an invalid packet.

Frequently asked questions

What is CVE-2011-2698?

Off-by-one error in the elem_cell_id_aux function in epan/dissectors/packet-ansi_a.c in the ANSI MAP dissector in Wireshark 1.4.x before 1.4.8 and 1.6.x before 1.6.1 allows remote attackers to cause a denial of service (infinite loop) via an invalid packet.

How severe is CVE-2011-2698?

CVE-2011-2698 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-2698 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2698?

CVE-2011-2698 primarily affects Wireshark. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2698?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-2698 published?

CVE-2011-2698 was published on 2011-08-23 and last updated on 2026-06-16.

References

• http://anonsvn.wireshark.org/viewvc?view=revision&revision=37930
• http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063586.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063591.html
• http://rhn.redhat.com/errata/RHSA-2013-0125.html
• http://secunia.com/advisories/45086
• http://secunia.com/advisories/45574
• http://secunia.com/advisories/48947
• http://www.openwall.com/lists/oss-security/2011/07/19/5
• http://www.openwall.com/lists/oss-security/2011/07/20/2
• http://www.securityfocus.com/bid/49071
• http://www.wireshark.org/security/wnpa-sec-2011-10.html
• http://www.wireshark.org/security/wnpa-sec-2011-11.html
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6044
• https://bugzilla.redhat.com/show_bug.cgi?id=723215
• https://exchange.xforce.ibmcloud.com/vulnerabilities/69074
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14610

Affected products (9)

• cpe:2.3:a:wireshark:wireshark:1.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.4:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.5:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.6:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.7:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.6.0:*:*:*:*:*:*:*

More vulnerabilities in Wireshark

• CVE-2011-0444 — Critical (CVSS 10.0): Buffer overflow in the MAC-LTE dissector (epan/dissectors/packet-mac-lte.c) in Wireshark 1.2.0 through 1.2.13 and 1.4.0…
• CVE-2010-2995 — Critical (CVSS 10.0): The SigComp Universal Decompressor Virtual Machine (UDVM) in Wireshark 0.10.8 through 1.0.14 and 1.2.0 through 1.2.9…
• CVE-2010-2994 — Critical (CVSS 10.0): Stack-based buffer overflow in the ASN.1 BER dissector in Wireshark 0.10.13 through 1.0.14 and 1.2.0 through 1.2.9 has…
• CVE-2009-1266 — Critical (CVSS 10.0): Unspecified vulnerability in Wireshark before 1.0.7 has unknown impact and attack vectors.
• CVE-2009-1210 — Critical (CVSS 10.0): Format string vulnerability in the PROFINET/DCP (PN-DCP) dissector in Wireshark 1.0.6 and earlier allows remote…
• CVE-2008-3146 — Critical (CVSS 10.0): Multiple buffer overflows in packet_ncp2222.inc in Wireshark (formerly Ethereal) 0.9.7 through 1.0.2 allow attackers to…

All CVEs affecting Wireshark →

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